Year 2024, Volume 9, Issue 2
| Year : | 2024 |
| Volume : | 9 |
| Issue : | 2 |
| Authors : | Tatyana LISINA, Кonstantin KORLYAKOV, Sofia SCHERBYONOK |
| Title : | INFLUENCE OF LIGHTING SPECTRAL COMPOSITION ON THE DEVELOPMENT OF POTATO PLANTS IN VITRO |
| Abstract : | The spectral composition of lighting at the stage of microclonal potato propagation is significant factor regulating physiological and biochemical processes. Optimization the lighting spectrum is promising not only for reducing energy costs in the production of healthy planting material, but also for increasing the reproduction rate. Two lighting treatments were used in laboratory experiment fulfilled in Perm Agricultural Research Institute in 2024.The first treatment was the OSRAM L 30W/77 T8 Fluora fluorescent phytolamp (PPF-R – 40.8%, PPF-B – 32.2%, PPF-G – 27.0%), which has the necessary predominance of blue and red waves in spectrum necessary for plant photosynthesis as a whole. The second variant was LED lighting with a spectrum (PPF-R - 62.4%, PPF-B - 21.6%, PPF-G - 16.0%) recommended according to literature data specifically for in vitro potatoes. The experiment was carried out for 28 days. The influence of spectral composition of illumination on the stem, length, leaves and internodes number, potato tops mass, the content of photosynthetic pigments were explored. Five potato varieties: Shah, Nevsky, Irbitsky (ripeness group: mid-early), Terra, Legend (ripeness group: early) were studied. As a result of the study, it was demonstrated that the use of optimized spectrum lighting led to the increase in the reproduction rate of potato during in vitro cuttings due to formation of internodes and leaves additional number, and stem length increase. The joint effect of lighting factors and genotype (hereditary factor) on morphological parameters was analyzed. It was revealed that the factor of lighting spectral composition influenced mainly on the length of plants and the number of internodes. |
| For citation : | Lisina, T., Korlyakov, K., Scherbyonok, S. (2024). Influence of lighting spectral composition on the development of potato plants in vitro. AGROFOR International Journal, Volume 9. Issue No. 2. pp. 68-75. DOI: 10.7251/AGREN2402068L |
| Keywords : | potato, culture in vitro, light spectrum, photosynthetic pigments. |
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ISSN 2490-3434 (Printed)
ISSN 2490-3442 (Online)
ISSN 2490-3442 (Online)
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